they pay zero income tax, zero capital gains tax and zero inheritance tax.nheritance one of an army of account ant ss who helped monaco's wealthy tax exiles. >> if you have an amount of kpils money, first of all, you will be welcome. >> is it a safe place to enjoy >> reporter: wealth, is that right? >> absolutely. the life monaco lifestyle. aco >> roger moore lives in monaco and tennis champion super model forme and former beatle ringo starr reporte are reportedly residents.ing them compa keeping them company are thousands of millionaires. of they have to show that they show don't have a criminal record and that they are already residents of the european union. but only a few can pass the final test proving that they union. have enough money to live here. pass th to open a bank account in depos monaco, you need a minimum deposit of nearly $400,000 and the country's real estate is the most expensive in the world. this apartment sold for more more than $300 million. >> monaco is very safe. safe >> reporter: selling some of monaco's luxurious homes. what was the most expensive property yo